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  1. #include<iostream>
  2. #include<cstring>
  3. using namespace std;
  4. int main(void)
  5. {
  6. 	long int i,j,t,k;
  7. 	cin>>t;
  8. 	while(t--)
  9. 	{
  10. 		int count1=0;
  11. 	long int count=0;
  12. 	char s[10001];
  13. 	char s1[10001];
  14. 	char ans[10001];
  15. 	cin>>s;
  16. 	cin>>s1;
  17. 	long int l=strlen(s);
  18. 	long int l1=strlen(s1);
  19. 	int temp=0;
  20. 	//int max1=min(l,l1);
  21. 	i=l-1,j=l1-1;
  22. 	k=0;
  23. 	if(l==l1)
  24. 	{
  25. 		temp=1;
  26. 	while(i>=0 && j>=0)
  27. 	{
  28. 		int d=(s[i]-'0')+(s1[j]-'0');
  29. 		int x=d%10;
  30. 		ans[k]=(char)(x+'0');
  31. 		i--;
  32. 		j--;
  33. 		k++;
  34. 	}
  35. 	ans[k]='\0';
  36. 	//for(i=k-1;i>=0;i--)
  37. 	//cout<<ans[i];
  38. 	//continue;
  39. }
  40. 	else if(l>l1)
  41. 	{
  42. 		int f=l-l1;
  43. 		for(i=0,j=0,k=0;i<l && j<l1 && k<l;i++,k++)
  44. 		{
  45. 			//count++;
  46. 			if(count!=f)
  47. 			{ans[k]=s[i];
  48. 			count++;
  49. 			}
  50. 			else
  51. 		{int d=(s[i]-'0')+(s1[j]-'0');
  52. 		int x=d%10;
  53. 		ans[k]=(char)(x+'0');
  54. 		j++;
  55. 		}
  56. 			//count++;	
  57. 		}
  58. 		ans[k]='\0';
  59.  
  60. 	//cout<<ans;
  61. 	}
  62. 	else if(l1>l)
  63. 	{
  64. 		int f=l1-l;
  65. 		for(i=0,j=0,k=0;i<l && j<l1 && k<l1;j++,k++)
  66. 		{
  67. 			//count++;
  68. 			if(count!=f)
  69. 			{ans[k]=s1[j];
  70. 			count++;
  71. 			}
  72. 			else
  73. 		{int d=(s[i]-'0')+(s1[j]-'0');
  74. 		int x=d%10;
  75. 		ans[k]=(char)(x+'0');
  76. 		i++;
  77. 		}
  78. 			//count++;	
  79. 		}
  80. 		ans[k]='\0';	
  81. 	//cout<<ans;
  82. 	}
  83. 	for(i=0;i<k;i++)
  84. 	{
  85. 		if(ans[i]=='0')
  86. 		count1++;
  87. 	}
  88. 	if(count1==k)
  89. 	cout<<0;
  90. 	else if(temp==1)
  91. 	{
  92. 		for(i=k-1;i>=0;i--)
  93. 		cout<<ans[i];
  94. 	}
  95. 	else
  96. 	cout<<ans;
  97. 	cout<<endl;
  98. }
  99. return 0;
  100. }
Success #stdin #stdout 0s 15232KB
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https://ideone.com/AhIROU
language:
C++14 (clang 8.0)
created:
7 years ago
visibility:
public

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